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35 votes
35 votes
Please help. Write an explicit rule for the n th term of the sequence. 125, 75, 45, 27,…. an= ?

User SanjX
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1 Answer

19 votes
19 votes

Answer:


a_n=125+(n-1){3\over{5}}

Explanation:

125

75=125*3/5

45=75*3/5

27=45*3/5


a_n=a_1+(n-1)r\\\\a_n=125+(n-1){3\over{5}}

User Smnbss
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